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Colorful fishes throng a reef in the Northwestern Hawaiian Islands.
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Bizarre and Beautiful Coral Reef Animals

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An oceanic whitetip shark swims near a biologist in the Bahamas.
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Spectacular Shark Pictures

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The siphonophores are an order of marine animals in the phylum Cnidaria (the same phylum containing jellyfish). 
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Prints from Ernst Haeckel

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A raindrop falls into a surface oil slick treated with chemical dispersant.
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After the Oil Spill: Research Projects in the Gulf of Mexico with GoMRI

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Illustration of a giant squid versus a merman.
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From Mermen to Architeuthis, Our Fascination with the Giant Squid

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A polar bear and its cub in Arctic National Wildlife Refuge, Alaska.
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Celebrating Marine Moms

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Tiny jellies in a petri dish.
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Fishing for Plastic: Photos from the Great Pacific Garbage Patch

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Rough periwinkles sit on a bed of barnacles.
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A Seashore Walk

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A rendering of an underwater marine scene from the Cambrian Period, featuring an arthropod, annelids, and other animals.
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A Collection of Cambrian Fossils

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Sunset over a fishing net.
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Success Stories in Ocean Conservation

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The Peninsula Valdes in Argentina was inscribed on the World Heritage List in 1999. The site is home to important breeding populations of the endangered southern right whale (Eubalaena australis), southern elephant seal (Mirounga leonina), and southern sea
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Marine World Heritage Photo Gallery

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The People's Reef--Part of the Hyperbolic Crochet Coral Reef
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The Hyperbolic Crochet Coral Reef

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